A320172 - cp's OEIS frontend

A320172 Number of series-reduced balanced rooted identity trees whose leaves are integer partitions whose multiset union is an integer partition of n.

n	a(n)
1	1
2	2
3	5
4	9
5	19
6	38
7	79
8	163
9	352
10	750
11	1633
12	3558
13	7783
14	17020
15	37338
16	81920
17	180399
18	398600
19	885101
20	1975638
21	4435741
22	10013855
23	22726109
24	51807432
25	118545425
26	272024659
27	625488420
28	1440067761
29	3317675261
30	7644488052
31	17610215982
32	40547552277
33	93298838972
34	214516498359
35	492844378878

[1, 2, 5, 9, 19, 38, 79, 163, 352, 750, 1633, 3558, 7783, 17020, 37338, 81920, 180399, 398600, 885101, 1975638, 4435741, 10013855, 22726109, 51807432, 118545425, 272024659, 625488420, 1440067761, 3317675261, 7644488052, 17610215982, 40547552277, 93298838972, 214516498359, 492844378878]

cp's OEIS Frontend

A320172 Number of series-reduced balanced rooted identity trees whose leaves are integer partitions whose multiset union is an integer partition of n.

Table of values

List of values